Automatic cut-out valve for self-playing organs



C. C. RUSSELL.

AUTOMATIC CUT-OUT VALVE FOR SELF PLAYING ORGANS. APPLICATION FILED APR.5, 1920.

1,400,240. Patented De0.13, 1921.

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.5715 A TTORNEY/S C. C. RUSSELL. AUTOMATIC CUT-OUT VALVE FOR SELF PLAYING omus. APPLICATION FILED APR-5| 1920. 1 ,400,24:0. Patented D60. 13, 1921.

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1. u/ BY V J/ZSATTORNEYfl- UNITED STATES ?ATEN'? GFFICE.

CHARLES C. RUSSELL, OF CHICAGO, ILLINOIS,

AUTOMATIC CUT-OUT VALVE FOR SELF-PLAYING ORGANS.

1,400,240. i Speci Application filed April 5,

To all iii/Lom- "it may concern:

Be it known that I, Qirannns C. RnssnLL, citizen of the United States, and a resident of the city of Chicago, in the county of Cook and the itate of Illinois, have invented certain new and useful improvements in Auto matic Cut-Out Valves for Self-llaying Organs, oi which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this invention is to provide an improved construction in a selfplaying organ for arresting the playing action automatically when the note-sheet-propolling mccha sm is adjusted for rewinding. It consists in the elements and tea turcs of construction shown and described, as indicated by the claims.

In the drawings:

Figure. l is a diagrammatic view showing conventionally the essential elements of an automatic organ in which the air passages are equipped with devices embodying this invention.

Fig. 2 is a detail plan view showing in conjunction with conventionally represented note-sheet-propelling motor and driving connections for playing and rewinding, the devices for shifting from playingto rewinding and the reverse and va ve controlling devices operated by said shifting devices which control the admission of air to the action chamber for playing.

There are represented in the drawings a. pumping means tor producing partial vacuum comprising a motor, 1, and a pamper consisting of a plurality of crank-operated bellows. 2. 2, 2. 2; an. exhaust air chamber, 3, which connected by a trunk with the pumping bellows and having spring-expa-nded air-receiving bellows, 3; the reed chamber, the pneumatic action chamber, 6. ,aid last mentioned chambers each being duplicated. or consisting of two separate parts indicated by the same reference numerals arranged at opposite sides of a. foreand-at't plane vertical through the instrument, one part pertaining to the lower half or bass of the playing-range of the instrument, and the other to the upper half or treble. 5 5 are ducts leading from the exhaust chamber to the two members, 5, 5, of the reed chamber. 7, 7, are air trunks leading from said exhaust chamber, 3, to the two members, 6, 6, of the action chamber. 9 is designed to represent an air motor for rs Eatent.

propelling the note sheet shown at 11, which is propelled in the familiar manner over a tracker board, 8, having ducts suitably connected with the primary pneumatics (not shown). in the pneumatic action chambers, 6, 3, for operating the playing devices represented by motor pneumatics, 10, which operate the reed-controlling valves in a manner requiring no specific explanation. The

means for shitting the drive connections of the air motor from one roll to the OiLl1GI,'lIO change from winding for playing to rewinaing. may be understood to be or any usual convenient construction, comprising a re-wind-shitt lever, 13. operated by a manually-accessible lrey. 16, said lever being shown in full line at playing position, and in dotted line at rewind position. The air trunks, 7, 7, which lead to the pneumatic action chambers, 6, 6, respectively, branch from a main trunk, 20, leading directly from the exhaust air chamber, 3, the junction being eiiected by means of a T-fitting, 21, whose stem passage is connected with the main trunk, 20, while its cross arm is connected at opposite ends with the. trunks, respectively. 25 is a slide valve, operating piston-wise in the stem of the T-l tting, and thereabove across the lateral ports leading nto the two arms of the cross member of said fitting. The stem passage of said T-fitting is extended above the cross passage :1 short distance to afford guidance for the slide valve, 25, whose stem, 26, is further guided at '27 above said fitting and is connected for operation of the valve by the moving wall, 28, oi a motor pneumatic, 29, which collapses downward and thereby co-iiperates with the suction operating through the trunk, 20, and the weight of the valve for holding the valve, 23, at closed position,-that is, cutting off communication of the exhaust chamber with the pneumatic action chambers, 6, 6, respectively, when said motor pneumatic is put in communication with the exhaust chamber for collapsing it; and when said motor pneumatic is cut oil from the exhaust connection and is free to expand under the action of its expansion spring, 28 it opposes the weight 01 the valve, 25, lifting it for opening the same, and thereby opening communication from the exhaust chamber to the pneumatic action chamber, 5, 5. Said motor pneumatic, 28, is controlled for collapse and expansion in the manner indicated, by a.

valved connection with the exhaust (Ella/I111 the shift lever, 13, is at playing position, the

motor pneumatic, 29, is expandedby a spring and operated for holding the valve, 25, at open position, putting the pneumatic action chambers, 6, 6, in communication with the exhaust chamber for operating the pneu matic action for playing; but when the lever, 13, is shifted to re-wind position, opening the valve, 32, which controls the motor pneumatic, 29, causing the latter to be 001- lapsed, the valve, 25, being released from the upward pull of said pneumatic, is moved by the suction operating through the trunk, 20, to closed position cutting off communication of the exhaust chamber with the action chambers, 6, 6,'and arresting the operation of the pneumatic action and preventing playing while re-winding continues.

I claim 7 1. In a elf-playing organ, in combination with the pumping means for producing partlal vacuum, a receiving bellows 1n which a condition of partial vacuum is produced by the pumper, a pneumatic action chamber for controlling the playing; a conduit from the receiver to the pneumatic action chamber; a valve which controls the air connection with the pneumatic action chamber conduit mounted for movement to closed position in the direction of suction from the receiver; a suction-operated pneumatic operatively connected with the valve for posi-' tively closing it by the collapse of the pneumatic, and positively opening it by the 'expansion of the pneumatlc; a sprlng which tends to expand the pneumatic and open the valve against the suction; note-sheet-operatin'g mechanism for winding and re-winding the note sheet; means for reversing said mechanism'from playing to rewinding, and connections from said means for controlling the suction connection of said pneumatic to admit the suction at the rewinding position.

2. in a self-playing organ having suctionproducing means for actuating the playing devices, a valve which controls the suction connection to the playing devices, mounted for movement to closed position in the direction of the note-sheet-operating mechanism, comprising means for reversing the direction of movement ofthe sheet for playing and re-winding respectively; connections operated by said means for causing the valve to be held open when said means is at playing position, and adapted to release it upon shifting to rewinding position, the playing devices comprising a pneumatic action chamber of two separate compartments, the air connection for controlling the same being forked or branched, a branchextending to each compartment, the valve being slidable crosswise of the two branches intermediate the same at their point of branching from the main air trunk; whereby the movement of said valve produced by the suction in the main trunk is transverse to both the branches for closing the same by one movement. I 3, In the construction defined in claim 1, the connection from the shifting means for holding the valve open, being a duct which controls the operation of said motor pneumatic and a valve which controls said'duct operatively connected with the shifting lever.

In testimony whereof, I have hereunto set" ,my hand, at Chicago, Illinois, this first day of April, 1920.

V 7 CHARLES C. RUSSE L-,1 

